Radio link monitoring method and user equipment

ABSTRACT

The present disclosure provides a radio link monitoring method and a UE. The radio link monitoring method includes: determining configuration information for performing a radio link monitoring operation on one or more BWPs of a system bandwidth; and performing the radio link monitoring operation on one or more target BWPs in accordance with the configuration information.

CROSS-REFERENCE TO RELATED APPLICATION

The present application claims a priority of the Chinese patentapplication No. 201710668188.0 filed on Aug. 7, 2017, which isincorporated herein by reference in its entirety.

TECHNICAL FIELD

The present disclosure relates to the field of communication technology,in particular to a radio link monitoring method and a User Equipment(UE).

BACKGROUND

In a conventional 4^(th)-Generation (4G) communication system, an RLMmechanism is used to detect quality of a Physical Downlink ControlChannel (PDCCH). During a radio link monitoring procedure, a radio linkis monitored by a UE through measuring Signal to Interference plus NoiseRatios (SINRs) of parts of Cell-specific Reference Signals (CRSs) forthe PDCCH.

When the measured SINRs of parts of the CRSs for the PDCCH are eachsmaller than a predetermined threshold, it means that the radio link isin an out-of-sync state, and at this time a physical layer may transmitan out-of-sync indications to a high layer (a Radio Resource Control(RRC) layer). When N consecutive out-of-sync indications have beenreceived by the RRC layer, the UE may start a radio link failure timer(T1).

When the measured SINRs of parts of the CRSs for the PDCCH are eachgreater than another threshold, it means that the radio link is in anin-sync state, and at this time the physical layer may transmit anin-sync indication to the high layer (the RRC layer). When M consecutivein-sync indications have been received by the RRC layer, the UE may stopthe timer T1.

When the timer T1 has timed out, the UE may determine that there is aradio link failure. At this time, a radio link failure event may betriggered, and the UE may re-initiate the establishment of the radiolink.

The quantities of the out-of-sync indications and in-sync indications,i.e., N and M, are configured by a network device, and a timeout lengthof the timer T1 is also configured by the network device.

In the 4G communication system, the RLM mechanism needs to monitor thereference signal at a full frequency band. Due to an indefinitemonitoring purpose, a significant waste of radio resources may occur.

In a 5^(th)-Generation (5G) communication system, the RLM mechanism isalso used to detect the quality of the PDCCH. Different from the 4Gcommunication system, in the 5G communication system, a bandwidth isfurther divided into a plurality of Bandwidth Parts (BWPs), so as toprovide more granular narrow-band services.

With respect to bandwidth features of the 5G communication system, it isable for the BWP-based RLM to provide a finer level of monitoringgranularity as compared with the RLM at the full frequency band, therebyto prevent the occurrence of the waste of the radio resources. Inaddition, it is also able to reduce the power consumption for the UEduring the RLM.

SUMMARY

An object of the present disclosure is to provide a BWP-based radio linkmonitoring method and a UE, so as to solve the above-mentioned problems.

In one aspect, the present disclosure provides in some embodiments aradio link monitoring method, including: determining configurationinformation for performing a radio link monitoring operation on one ormore BWPs of a system bandwidth; and performing the radio linkmonitoring operation on one or more target BWPs in accordance with theconfiguration information, the one or more target BWPs belonging to theone or more BWPs.

In another aspect, the present disclosure provides in some embodiments aUE, including: a determination module configured to determineconfiguration information for performing a radio link monitoringoperation on one or more BWPs of a system bandwidth; and a monitoringmodule configured to perform the radio link monitoring operation on oneor more target BWPs in accordance with the configuration information,the one or more target BWPs belonging to the one or more BWPs.

In yet another aspect, the present disclosure provides in someembodiments a UE, including a memory, a processor, and a computerprogram stored in the memory and executed by the processor. Theprocessor is configured to execute the program so as to implement theabove-mentioned radio link monitoring method.

In still yet another aspect, the present disclosure provides in someembodiments a computer-readable storage medium storing therein acomputer program. The computer program is executed by a processor so asto implement the above-mentioned radio link monitoring method.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a flow chart of a radio link monitoring method according tosome embodiments of the present disclosure;

FIG. 2 is a schematic view showing a UE according to some embodiments ofthe present disclosure;

FIG. 3 is a schematic view showing a monitoring module in the UEaccording to some embodiments of the present disclosure; and

FIG. 4 is another schematic view showing the UE according to someembodiments of the present disclosure.

DETAILED DESCRIPTION

In order to make the objects, the technical solutions and the advantagesof the present disclosure more apparent, the present disclosure will bedescribed hereinafter in a clear and complete manner in conjunction withthe drawings and embodiments. In the following description, specificdetails of configurations and assemblies are merely provided tofacilitate the understanding of the present disclosure. It should beappreciated that, a person skilled in the art may make furthermodifications and alternations without departing from the spirit of thepresent disclosure. In addition, for clarification, any known functionand structure will not be described hereinafter.

It should be further appreciated that, such phrases as “one embodiment”and “one of the embodiments” intend to indicate that the features,structures or characteristics are contained in at least one embodimentof the present disclosure, rather than referring to a same embodiment.In addition, the features, structures or characteristics may be combinedin any embodiment or embodiments in an appropriate manner.

It should be appreciated that, the following serial numbers do not referto the order of the steps. Actually, the order shall be determined inaccordance with functions and internal logic of the steps, but shall notbe construed as limiting the implementation in any form.

Different from a 4G communication system, in a 5G communication system,a bandwidth is divided into several BWPs, and each BWP corresponds toone bandwidth segment. With respect to this scenario, the presentdisclosure has first proposed a BWP-based radio link monitoring scheme,so as to provide a more definite monitoring purpose as compared with aradio link monitoring scheme at a full frequency band in the relatedart. An object of the present disclosure is to provide a BWP-based radiolink monitoring method and a UE, so as to prevent the occurrence ofradio resource waste during the radio link monitoring.

The present disclosure provides in some embodiments a radio linkmonitoring method for a UE, which includes Steps 101 and 102.

Step 101: determining configuration information for performing a radiolink monitoring operation on one or more BWPs of a system bandwidth.

Illustratively, in Step 101, the configuration information forperforming the radio link monitoring operation on the one or more BWPsmay be determined by the UE in accordance with a predefined protocol,and/or acquired by the UE from a network device.

When the configuration information is acquired by the UE from thenetwork device, the network device for transmitting the configurationinformation may be a base station, e.g., a gNB in an NR system or an eNBin an LTE system. In a possible embodiment of the present disclosure,the configuration information may be carried in an existing signal andnotified by the network device to the UE. The existing signal mayinclude, but not limited to, an RRC message.

Step 102: performing the radio link monitoring operation on one or moretarget BWPs in accordance with the configuration information, the one ormore target BWPs belonging to the one or more BWPs.

Obviously, through the above steps of the radio link monitoring method,the radio link monitoring operation may be performed with the BWP asgranularity. As compared with the conventional radio link monitoringmethod for the 4G communication system at a full frequency band, it isable to perform the radio link monitoring operation in a more accuratemanner, thereby to prevent the waste of radio resources and reduce thepower consumption for the UE during the radio link monitoring operation.Hence, the radio link monitoring method in the embodiments of thepresent disclosure has a very high practical value.

Obviously, the radio link monitoring method may be applied to all UEs,and for a wireless network, it is able to effectively prevent the wasteof the radio resources. Hence, the radio link monitoring method in theembodiments of the present disclosure has a very high application value.

The radio link monitoring method will be described hereinafter in moredetails.

To be specific, in Step 102, counting units may be configured to performthe radio link monitoring operation on the one or more target BWPs. Eachcounting unit may include a radio link in-sync counter, a radio linkout-of-sync counter, and a radio link failure timer.

The radio link in-sync counter, the radio link out-of-sync counter andthe radio link failure timer may have same functions as those applied tothe 4G communication system as mentioned hereinabove. It should beappreciated that, although with the same functions, operating modes forachieving these functions may not be necessarily the same. Some feasibleoperating modes will be described hereinafter.

Operating Mode #1

For example, there is at least one target BWP, and the counting unitsmay correspond to the target BWPs respectively. The performing, by theUE using the counting units, the radio link monitoring operation on thetarget BWPs corresponding to the counting units may include: during theradio link monitoring operation, when a radio link corresponding to apredetermined target BWP is in an out-of-sync state, causing the radiolink out-of-sync counter of the counting unit corresponding to thepredetermined target BWP to count in a cumulative manner; and/or whenthe radio link corresponding to the predetermined target BWP is in anin-sync state, causing the radio link in-sync counter of the countingunit corresponding to the predetermined target BWP to count in acumulative manner.

The radio link out-of-sync counter of the counting unit corresponding tothe predetermined target BWP is merely configured to count the quantityof out-of-sync times when the radio link corresponding to thepredetermined target BWP is continuously in the out-of-sync state, andthe radio link in-sync counter of the counting unit corresponding to thepredetermined target BWP is merely configured to count the quantity ofin-sync times when the radio link corresponding to the predeterminedtarget BWP is continuously in the in-sync state.

When the radio link is continuously in the out-of-sync state, it meansthat there is no in-sync state between two out-of-sync states. When theradio link is in the in-sync state after being in the out-of-sync state,the radio link out-of-sync counter for counting the quantity of theout-of-sync times of the radio link needs to be restarted.

When the radio link is continuously in the in-sync state, it means thatthere is no out-of-sync state between two in-sync states. When the radiolink is in the out-of-sync state after being in the in-sync state, theradio link in-sync counter for counting the quantity of the in-synctimes of the radio link needs to be restarted.

Illustratively, the one or more target BWPs may include a BWP1corresponding to a counting unit 1, a BWP2 corresponding to a countingunit 2, and a BWP3 corresponding to a counting unit 3.

When the UE has determined that the radio link corresponding to BWP1 isin the out-of-sync state, merely the radio link out-of-sync counter ofthe counting unit 1 may be caused to count in a cumulative manner. Whenthe UE has determined that the radio link corresponding to BWP2 is inthe out-of-sync state, merely the radio link out-of-sync counter of thecounting unit 2 may be caused to count in a cumulative manner. When theUE has determined that the radio link corresponding to BWP3 is in theout-of-sync state, merely the radio link out-of-sync counter of thecounting unit 3 may be caused to count in a cumulative manner.

This mode may also be applied to the radio link in-sync counter. Inother words, when the UE has determined that the radio linkcorresponding to BWP1 is in the in-sync state, merely the radio linkin-sync counter of the counting unit 1 may be caused to count in acumulative manner. When the UE has determined that the radio linkcorresponding to BWP2 is in the in-sync state, merely the radio linkin-sync counter of the counting unit 2 may be caused to count in acumulative manner. When the UE has determined that the radio linkcorresponding to BWP3 is in the in-sync state, merely the radio linkin-sync counter of the counting unit 3 may be caused to count in acumulative manner.

The determining that the radio link corresponding to the target BWP isin the out-of-sync state may include, when received quality of areference signal for the target BWP does not meet a predeterminedcondition and/or when an indication indicating that the target BWP orthe current UE is in the out-of-sync state has been received from a lowlayer, determining that the radio link corresponding to the target BWPis in the out-of-sync state. The determining that the radio linkcorresponding to the target BWP is in the in-sync state may include,when the received quality of the reference signal for the target BWPmeets the predetermined condition and/or when an indication indicatingthat the target BWP or the current UE is in the in-sync state has beenreceived from the low layer, determining that the radio linkcorresponding to the target BWP is in the in-sync state.

Here, whether the received quality of the reference signal meets thepredetermined condition may be determined in accordance with at leastone of an SINR, RSRP, RSRQ and RSSI. For example, when the SINR of thereference signal does not reach a predetermined standard, the receivedquality may be determined as not meeting the predetermined condition.

The indication indicating that the target BWP or the current UE is inthe in-sync state from the low layer may be an in-sync indication, orany other indication capable of implicitly indicating the in-sync state.

It should be appreciated that, the UE may determine that the radio linkcorresponding to the BWP is in the in-sync or out-of-sync state invarious modes. Hence, the above method shall not be construed aslimiting the scope of the present disclosure, and differentdetermination modes may be used in combination.

Further, when a value of the radio link out-of-sync counter reaches afirst predetermined threshold, the radio link failure timer whichbelongs to the same counting unit as the radio link out-of-sync countermay be caused; and/or during the operation of the radio link failuretimer, when a value of the radio link in-sync counter which belongs tothe same counting unit as the radio link failure timer reaches a secondpredetermined threshold, the radio link failure timer may be stopped orreset.

When a value of the radio link failure timer of any counting unitreaches a predetermined threshold, a radio link processing procedure maybe performed. The radio link processing procedure may include at leastone of: trigging a radio link failure operation; performing adeactivation procedure, a replacement procedure or a reconfigurationprocedure on the BWP for the radio link monitoring operation; triggeringa failure event for the BWP for the radio link monitoring operation;performing the deactivation procedure, the replacement procedure or thereconfiguration procedure on the BWP corresponding to the counting unitincluding the radio link failure timer whose value reaches thepredetermined threshold; and triggering the failure event for the BWPcorresponding to the counting unit including the radio link failuretimer whose value reaches the predetermined threshold.

The triggering of the failure event for the BWP is a known function.Based on this, when the failure event is triggered for the BWP, thedeactivation procedure, the replacement procedure or the reconfigurationprocedure may be performed on the BWP for which the failure event istriggered; or when the failure event is triggered for the BWP, thedeactivation procedure, the replacement procedure or the reconfigurationprocedure may be performed on the BWP for the radio link monitoringoperation.

Further, when the value of each radio link failure timer correspondingto each counting unit reaches the predetermined threshold, a radio linkprocessing procedure may be performed. The radio link processingprocedure may include at least one of: triggering a radio link failureoperation; performing a deactivation procedure, a replacement procedureor a reconfiguration procedure on the BWP for the radio link monitoringoperation; and triggering a failure event for the BWP for the radio linkmonitoring operation.

The deactivation procedure may be used to stop the radio link monitoringoperation on the corresponding BWP, the replacement procedure may beused to replace the BWP for the radio link monitoring operation isperformed, and the reconfiguration procedure may be used to reconfigurea radio link monitoring parameter of the BWP or replace the BWP for theradio link monitoring operation.

Operating Mode #2

For example, there is at least two target BWPs corresponding to onecounting unit. The performing, by the UE using the counting unit, theradio link monitoring operation on the target BWPs corresponding to thecounting unit may include: during the radio link monitoring operation,when a radio link corresponding to any target BWP is in an out-of-syncstate, causing the radio link out-of-sync counter of the counting unitto count in a cumulative manner; and/or when the radio linkcorresponding to any target BWP is in an in-sync state, causing theradio link in-sync counter of the counting unit to count in a cumulativemanner.

The radio link out-of-sync counter of the counting unit corresponding toeach target BWP is merely configured to count the quantity ofout-of-sync times when the radio link corresponding to the target BWPitself is continuously in the out-of-sync state, and/or the radio linkin-sync counter of the counting unit corresponding to each target BWP ismerely configured to count the quantity of in-sync times when the radiolink corresponding to the target BWP itself is continuously in thein-sync state.

When the radio link is continuously in the out-of-sync state, it meansthat there is no in-sync state between two out-of-sync states. When theradio link is in the in-sync state after being in the out-of-sync state,the radio link out-of-sync counter for counting the quantity of theout-of-sync times of the radio link needs to be restarted.

When the radio link is continuously in the in-sync state, it means thatthere is no out-of-sync state between two in-sync states. When the radiolink is in the out-of-sync state after being in the in-sync state, theradio link in-sync counter for counting the quantity of the in-synctimes of the radio link needs to be restarted.

Illustratively, the one or more target BWPs may include a BWP1 and aBWP2 both corresponding to a counting unit 1, and a BWP3 correspondingto a counting unit 2.

Here, the BWP1 and the BWP2 correspond to the same counting unit i1, soduring the radio link monitoring on the BWP1 and the BWP2, a same radiolink in-sync counter, a same radio link out-of-sync counter and a sameradio link failure timer may be used. In other words, no matter whethera radio link corresponding to the BWP1 or a radio link corresponding tothe BWP2 is in the out-of-sync state, the UE needs to control the radiolink out-of-sync counter of the counting unit 1 to count in a cumulativemanner. This counting mode may also be applied to the radio link in-synccounter of the counting unit 1.

The BWP3 corresponds to the counting unit 2, so when a radio linkcorresponding to the BWP3 is in the out-of-sync state, the UE may merelycontrol the radio link out-of-sync counter of the counting unit 2 tocount in a cumulative manner, while the radio link out-of-sync counterof the counting unit 1 may not be enabled.

The determining that the radio link corresponding to each target BWP isin the out-of-sync state may include, when received quality of areference signal for the target BWP does not meet a predeterminedcondition and/or when an indication indicating that the target BWP orthe current UE is in the out-of-sync state has been received from a lowlayer, determining that the radio link corresponding to the target BWPis in the out-of-sync state. The determining that the radio linkcorresponding to each target BWP is in the in-sync state may include,when the received quality of the reference signal for the target BWPmeets the predetermined condition and/or when an indication indicatingthat the target BWP or the current UE is in the in-sync state has beenreceived from the low layer, determining that the radio linkcorresponding to the target BWP is in the in-sync state.

Here, whether the received quality of the reference signal meets thepredetermined condition may be determined in accordance with at leastone of an SINR, RSRP, RSRQ and RSSI. For example, when the SINR of thereference signal does not reach a predetermined standard, the receivedquality may be determined as not meeting the predetermined condition.

Further, the performing the radio link monitoring operation on eachtarget BWP through the counting unit for monitoring the radio link mayinclude performing, through the counting unit, the radio link monitoringoperation on each target BWP corresponding to the counting unit.

Further, when a value of the radio link out-of-sync counter reaches thefirst predetermined threshold, the radio link failure timer whichbelongs to the same counting unit as the radio link out-of-sync countermay be enabled; and/or during the operation of the radio link failuretimer, when a value of the radio link in-sync counter which belongs tothe same counting unit as the radio link failure timer reaches thesecond predetermined threshold, the radio link failure timer may bestopped or reset.

When a value of the radio link failure timer of any counting unitreaches the predetermined threshold, a radio link processing proceduremay be performed. The radio link processing procedure may include atleast one of: trigging a radio link failure operation; triggering afailure event for the BWP for the radio link monitoring operation;triggering the failure event for the BWP corresponding to the countingunit including the radio link failure timer whose value reaches thepredetermined threshold; performing a deactivation procedure, areplacement procedure or a reconfiguration procedure on the BWPcorresponding to the counting unit including the radio link failuretimer whose value reaches the predetermined threshold; and performingthe deactivation procedure, the replacement procedure or thereconfiguration procedure on the BWP for the radio link monitoringoperation.

In the embodiments of the present disclosure, the deactivationprocedure, the replacement procedure or the reconfiguration proceduremay be subsequently performed on the BWP for which the failure event istriggered, or when the failure event is triggered for the BWP, thedeactivation procedure, the replacement procedure or the reconfigurationprocedure may be on the BWP for the radio link monitoring operation.

Operating Mode #3

There are at least three target BWPs which are divided into at least onefirst portion and at least one second portion. The first portion mayinclude at least one target BWP, and each target BWP may correspond toone counting unit. The second portion may include at least two targetBWPs, and each target BWP may correspond to one counting unit. Theperforming, by the UE using the counting units, the radio linkmonitoring operation on the target BWPs corresponding to the countingunits may include: during the radio link monitoring operation on eachtarget BWP of the first portion, when a radio link corresponding to apredetermined target BWP is in the out-of-sync state, causing the radiolink out-of-sync counter of the counting unit corresponding to thepredetermined target BWP to count in a cumulative manner, and/or whenthe radio link corresponding to the predetermined target BWP is in thein-sync state, causing the radio link in-sync counter of the countingunit corresponding to the predetermined target BWP to count in acumulative manner; and during the radio link monitoring operation oneach target BWP of the second portion, when a radio link correspondingto any one target BWP monitored by the counting unit is in theout-of-sync state, causing the radio link out-of-sync counter of thecounting unit corresponding to the target BWP to count in a cumulativemanner, and/or when the radio link corresponding to any one target BWPmonitored by the counting unit is in the in-sync state, causing theradio link in-sync counter of the counting unit corresponding to thetarget BWP to count in a cumulative manner.

To be specific, during the radio link monitoring operation on eachtarget BWP of the first portion, the radio link out-of-sync counter ofthe counting unit corresponding to the predetermined target BWP ismerely configured to count the quantity of out-of-sync times when theradio link corresponding to the predetermined target BWP is continuouslyin the out-of-sync state, and/or the radio link in-sync counter of thecounting unit corresponding to the predetermined target BWP is merelyconfigured to count the quantity of in-sync times when the radio linkcorresponding to the predetermined target BWP is continuously in thein-sync state.

When the radio link is continuously in the out-of-sync state, it meansthat there is no in-sync state between two out-of-sync states. When theradio link is in the in-sync state after being in the out-of-sync state,the radio link out-of-sync counter for counting the quantity of theout-of-sync times of the radio link needs to be restarted.

When the radio link is continuously in the in-sync state, it means thatthere is no out-of-sync state between two in-sync states. When the radiolink is in the out-of-sync state after being in the in-sync state, theradio link in-sync counter for counting the quantity of the in-synctimes of the radio link needs to be restarted.

To be specific, during the radio link monitoring operation on eachtarget BWP of the second portion, the radio link out-of-sync counter ofthe counting unit corresponding to each target BWP is merely configuredto count the quantity of out-of-sync times when the radio linkcorresponding to the target BWP itself is continuously in theout-of-sync state, and/or the radio link in-sync counter of the countingunit corresponding to each target BWP is merely configured to count thequantity of in-sync times when the radio link corresponding to thetarget BWP itself is continuously in the in-sync state.

Further, when a value of the radio link out-of-sync counter reaches thefirst predetermined threshold, the radio link failure timer whichbelongs to the same counting unit as the radio link out-of-sync countermay be enabled. During the operation of the radio link failure timer,when a value of the radio link in-sync counter which belongs to the samecounting unit as the radio link failure timer reaches the secondpredetermined threshold, the radio link failure timer may be stopped orreset.

During the radio link monitoring operation on each target BWP of thefirst portion, when a value of the radio link failure timer of anycounting unit reaches the predetermined threshold, a radio linkprocessing procedure may be performed. The radio link processingprocedure may include at least one of: trigging a radio link failureoperation; triggering a failure event for the BWP corresponding to thecounting unit including the radio link failure timer whose value reachesthe predetermined threshold; and performing a deactivation procedure, areplacement procedure or a reconfiguration procedure on the BWP for theradio link monitoring operation.

Further, during the radio link monitoring operation on each target BWPof the first portion, when a value of the radio link failure timercorresponding to each counting unit reaches the predetermined threshold,a radio link processing procedure may be performed. The radio linkprocessing procedure may include at least one of: trigging a radio linkfailure operation; performing a deactivation procedure, a replacementprocedure or a reconfiguration procedure on the BWP for the radio linkmonitoring operation; and triggering a failure event for the BWP for theradio link monitoring operation.

During the radio link monitoring operation on each target BWP of thesecond portion, when a value of the radio link failure timercorresponding to each counting unit reaches the predetermined threshold,a radio link processing procedure may be performed. The radio linkprocessing procedure may include at least one of: trigging a radio linkfailure operation; triggering a failure event for the BWP for the radiolink monitoring operation; triggering a failure event for the BWPcorresponding to the counting unit including the radio link failuretimer whose value reaches the predetermined threshold; performing adeactivation procedure, a replacement procedure or a reconfigurationprocedure on the BWP corresponding to the counting unit including theradio link failure timer whose value reaches the predeterminedthreshold; and performing the deactivation procedure, the replacementprocedure or the reconfiguration procedure on the BWP for the radio linkmonitoring operation.

It can be seen that, the Operating mode #3 is a combination of theOperating mode #1 and the Operating mode #2. The principle has alreadybeen described hereinabove, and thus will not be particularly definedherein.

In addition, in the method, the UE may further perform the deactivationprocedure, the replacement procedure or the reconfiguration procedure onthe BWP in accordance with an indication from the network device.

For example, the method may further include: receiving indicationinformation from the network device, the indication information beingcarried in an RRC message and including at least one of indicationinformation for deactivating one or more BWPs for the radio linkmonitoring operation, and indication information for deactivating one ormore BWPs for the radio link monitoring operation and activating one ormore BWPs for the radio link monitoring operation; and performing atleast one of the following processings in accordance with the indicationinformation: resetting at least one of the radio link in-sync counter,the radio link out-of-sync counter and the radio link failure timer ofthe counting unit corresponding to each to-be-deactivated BWP, or notresetting any one of the radio link in-sync counter, the radio linkout-of-sync counter and the radio link failure timer of the countingunit corresponding to each to-be-deactivated BWP; stopping the radiolink monitoring operation on each to-be-deactivated BWP; and when theradio link monitoring operation is currently being performed on eachto-be-deactivated BWP, omitting the indication information.

In actual use, the above processes may be selected according to thepractical need. For example, when the counting unit corresponding to theto-be-deactivated BWP further corresponds to the other BWP for the radiolink monitoring operation, obviously as an appropriate scheme, thecounter and/or timer of the counting unit corresponding to theto-be-activated BWP may be reset during the deactivation procedure.

For another example, in order to ensure the radio link monitoringoperation to be normally performed, upon the receipt of indicationinformation indicating that there is one or more to-be-deactivated BWPs,the UE may determine whether the radio link monitoring operation iscurrently being performed on the one or more to-be-deactivated BWPs.When the radio link monitoring operation is currently being performed onthe one or more to-be-deactivated BWPs, the indication information maybe omitted. When no radio link monitoring operation is currently beingperformed on the one or more to-be-deactivated BWPs, the deactivationprocedure may be directly initiated for the one or more BWPs.

It should be appreciated that, the deactivation procedure on the BWP isa known function. In actual use, the UE may not initiate the radio linkmonitoring operation on the BWP which has been deactivated. However,when a BWP on which the radio link monitoring operation is currentlybeing performed is deactivated, the radio link monitoring operation onthe BWP needs to be completed preferentially.

In addition, in a possible embodiment of the present disclosure, afterstopping the radio link monitoring operation on the to-be-deactivatedBWP in accordance with the indication information, the UE may select oneBWP in accordance with a predetermined rule, and then perform the radiolink monitoring operation on the selected BWP through the counting unitcorresponding to the to-be-deactivated BWP or through the counting unitcorresponding to the selected BWP.

Obviously, on the basis of the above design, during the radio linkmonitoring operation on the to-be-deactivated BWP, the UE may replacethe to-be-deactivated BWP with another BWP for the radio link monitoringoperation, so as to perform the radio link monitoring operationnormally.

In actual use, the selected BWP may be located adjacent to theto-be-deactivated BWP to be replaced by the selected BWP in a frequencyband and/or slot, so as to cause the radio link monitoring operation onthe selected BWP to be equivalent to or approximately equivalent to theradio link monitoring operation on the to-be-deactivated BWP in terms ofa monitoring effect.

In addition, the indication information may include at least one ofindication information for replacing or reconfiguring one or more BWPsfor the radio link monitoring operation, and indication information forreplacing or reconfiguring one or more BWPs for the radio linkmonitoring operation and one or more replaced or reconfigured BWPs forthe radio link monitoring operation. The UE may further perform at leastof the following processings in accordance with the indicationinformation: resetting at least one of the radio link in-sync counter,the radio link out-of-sync counter and the radio link failure timer ofthe counting unit corresponding to the to-be-replaced orto-be-reconfigured BWP, or not resetting any one of the radio linkin-sync counter, the radio link out-of-sync counter and the radio linkfailure timer of the counting unit corresponding to the to-be-replacedor to-be-reconfigured BWP; stopping the radio link monitoring operationon the to-be-replaced or to-be-reconfigured BWP; and performing theradio link monitoring operation on the replaced or reconfigured BWP.

Illustratively, in actual use, when a BWP is reconfigured, it means thata radio link monitoring parameter may be reconfigured for the BWP. Theradio link monitoring parameter may include a reference used for theradio link monitoring operation, e.g., a CSI-RS and/or an SS block. Theradio link monitoring parameter may further include the firstpredetermined threshold and/or the second predetermined threshold, andthe predetermined threshold for the counting unit mentioned hereinabove.

Further, after performing the radio link monitoring operation on theto-be-replaced or to-be-reconfigured BWP in accordance with theindication information, one BWP may be selected in accordance with thepredetermined rule. Then, the radio link monitoring operation may beperformed on the selected BWP through the counting unit corresponding tothe to-be-replaced or to-be-reconfigured BWP or the counting unitcorresponding to the selected BWP.

The radio link monitoring method will be described hereinafter in moredetails in conjunction with different implementation modes.

Implementation Mode #1

In this implementation mode, the UE merely needs to perform the radiolink monitoring operation on one BWP.

Scheme #1: during the radio link monitoring operation, when any BWP isreplaced or deactivated (i.e., the BWP on which the radio linkmonitoring operation is to be stopped), the other BWP is activated (theBWP on which the radio link monitoring operation needs to be performed),or the radio link monitoring parameter of any BWP is reconfigured, allof the radio link in-sync counter, the radio link out-of-sync counterand the radio link failure timer of the corresponding counting unit maybe reset.

Scheme #2: during the radio link monitoring operation, when any BWP isreplaced or deactivated, the other BWP is activated, or the radio linkmonitoring parameter of any BWP is reconfigured, a part of the radiolink in-sync counter, the radio link out-of-sync counter and the radiolink failure timer of the corresponding counting unit may be reset,e.g., merely one of the radio link in-sync counter, the radio linkout-of-sync counter and the radio link failure timer may be reset.

Scheme #3: during the radio link monitoring operation, when any BWP isreplaced or deactivated, the other BWP is activated, or the radio linkmonitoring parameter of any BWP is reconfigured, the radio link in-synccounter, the radio link out-of-sync counter and the radio link failuretimer of the corresponding counting unit may be maintained, i.e., maynot be reset.

In the Implementation mode #1, for Schemes 1 to 3, when the value of theradio link failure timer reaches the predetermined threshold, at leastone of the subsequent behaviors may be performed: 1) triggering a radiolink failure (RLF) operation; and 2) triggering a deactivation procedureor a replacement procedure on the BWP for the radio link monitoringoperation.

Implementation Mode #2

In this implementation mode, the UE needs to perform the radio linkmonitoring operation on a plurality of BWPs.

Scheme #4: different counting units may be used for the plurality ofBWPs for the radio link monitoring operation.

The network device may configure the counting unit for each BWP inaccordance with the configuration information, including a value “N” ofthe radio link out-of-sync counter, a value “M” of the radio linkin-sync counter and the predetermined threshold “T1” of the radio linkfailure timer of each counting unit.

The UE may perform the radio link monitoring operation on each BWP. Forexample, when an intensity of the reference signal measured at the BWP1does not meet a predetermined condition, the UE may notify an upperlayer of a Quality of Service (QoS) indication through a physical layer,the value of the radio link out-of-sync counter corresponding to theBWP1 may be incremented by 1, and the radio link in-sync countercorresponding to the BWP1 may be reset.

Identically, the radio link in-sync counter and the radio link failuretimer may operate separately at the corresponding BWP.

For example, when the intensity of the reference signal measured at theBWP1 meets the predetermined condition, UE may notify the upper layer ofan IS indication through the physical layer, the radio link in-synccounter corresponding to the BWP1 may be incremented by 1, and the radiolink out-of-sync counter corresponding to the BWP1 may be reset.

Identically, the BWPs may not be differentiated from each other for theradio link failure timer, and the radio link failure timer may bestarted as long as the value of the radio link out-of-sync counter hassuccessfully counted to N. After the value of the radio link in-synccounter has counted to M, the radio link failure timer may be stoppedand reset.

In Scheme #4, when the value of the radio link failure timercorresponding to a certain BWP reaches T1, at least one of the followingbehaviors may be performed subsequently: 1) triggering, by the UE, theradio link failure (RLF) operation; 2) triggering, by the UE, a failureevent for the BWP (i.e., BWP failure (BWPF), at this time, the 5Gcommunication system may process the BWP for which the failure event hasbeen triggered); and 3) directly triggering, by the UE, the deactivationprocedure or the replacement procedure on the BWP.

In Scheme #4, when the value of each radio link failure timer for eachBWP reaches T1, at least one of the following behaviors may be performedsubsequently: 1) triggering, by the UE, the radio link failure (RLF)operation; and 2) triggering, by the UE, the deactivation procedure orthe replacement procedure on all the BWPs.

Further, Scheme #4 may be combined with Scheme #1 in the Implementationmode #1. In other words, when any BWP is replaced or deactivated, theother BWP is activated, or the radio link monitoring parameter of anyBWP is reconfigured, at least a part of the radio link in-sync counter,the radio link out-of-sync counter and the radio link failure timer ofthe corresponding counting unit may be reset.

Scheme #5: the UE may perform the radio link monitoring operation on aplurality of BWPs through one counting unit.

The network device may configure a value “N” of a same radio linkout-of-sync counter, a value “M” of a same radio link in-sync counterand a predetermined threshold “T1” of a same radio link failure timerfor all the BWPs.

For example, when the intensity of the reference signal measured at theBWP1 does not meet the predetermined condition, the UE may notify theupper layer of a QoS indication through the physical layer, the value ofthe unique radio link out-of-sync counter corresponding to the BWP1 maybe incremented by 1, and the radio link in-sync counter may be reset.When the intensity of the reference signal measured at the BWPs issmaller than a predetermined threshold, the UE may notify the upperlayer of a QoS indication through the physical layer, the value of thecorresponding radio link out-of-sync counter may be incremented by 1,and the radio link in-sync counter may be reset.

Identically, the BWPs may not be differentiated from each other for theradio link in-sync counter. The value of radio link in-sync counter maybe incremented by 1, and the radio link out-of-sync may be reset as longas the UE has notified the high layer of the IS indication through thephysical layer.

Identically, the BWPs may not be differentiated from each other for theradio link failure timer, and the radio link failure timer may bestarted as long as the value of the radio link out-of-sync counter hassuccessfully counted to N. After the value of the radio link in-synccounter has counted to M, the radio link failure timer may be stoppedand reset.

In Scheme #5, when the value of the radio link failure timer reaches T1,at least one of the following behaviors may be performedsubsequently: 1) triggering, by the UE, the radio link failure (RLF)operation; 2) triggering, by the UE, a failure event for at least a partof the BWPs (i.e., BWP failure (BWPF), at this time, the 5Gcommunication system may process the BWPs for which the failure eventhas been triggered); and 3) triggering, by the UE, the deactivationprocedure or the replacement procedure on at least a part of the BWPs.

Further, Scheme #5 may be combined with Scheme #1 in the Implementationmode #1. In other words, when any BWP is replaced or deactivated, theother BWP is activated, or the radio link monitoring parameter of anyBWP is reconfigured, at least a part of the radio link in-sync counter,the radio link out-of-sync counter and the radio link failure timer ofthe counting unit may be reset.

Scheme #6: the UE may perform the radio link monitoring operation on aplurality of BWPs, one counting unit may be used for severalpredetermined or pre-configured BWPs, and another counting unit may beused for the other predetermined or pre-configured BWPs.

For example, a same counting unit may be used for the BWPs belonging toa same CC, and different counting units may be used for the BWPsbelonging to different CCs.

In Scheme #6, when the value of the corresponding radio link failuretimer reaches T1, the behaviors in Scheme #4 and Scheme #5 may beperformed sub sequently.

Further, Scheme #6 may be combined with Scheme #1 in the Implementationmode #1. In other words, when any BWP is replaced or deactivated, theother BWP is activated, or the radio link monitoring parameter of anyBWP is reconfigured, at least a part of the radio link in-sync counter,the radio link out-of-sync counter and the radio link failure timer ofthe counting unit may be reset.

Implementation Mode #3

In this implementation mode, each BWP for the radio link monitoringoperation may be deactivated through an RRC message.

Scheme #7: when the to-be-deactivated BWPs for the radio link monitoringoperations have been determined by the UE in accordance with the RRCmessage, one of the following behaviors may be performedsubsequently: 1) resetting all of or a part of the radio link in-synccounter, the radio link out-of-sync counter and the radio link failuretimer of the counting unit corresponding to each to-be-deactivated BWPfor the radio link monitoring operation; 2) searching, by the UE, onesubstitutive BWP for the radio link monitoring operation in accordancewith a predetermined rule, and executing all the schemes in theImplementation mode #1 when the BWP is replaced (the predetermined rulemay be configured by the network device, or by the UE itself); and 3)not allowing, by the UE, the deactivation procedure on the BWP on whichthe radio link monitoring operation is currently being performed, andupon the receipt of the RRC message carrying the indication informationindicating that the BWP on which the radio link monitoring operation iscurrently being performed is to be deactivated, omitting the indicationinformation in the RRC message.

As shown in FIG. 2, the present disclosure further provides in someembodiments a UE, including: a determination module 201 configured todetermine configuration information for performing a radio linkmonitoring operation on one or more BWPs of a system bandwidth; and amonitoring module 202 configured to perform the radio link monitoringoperation on one or more target BWPs in accordance with theconfiguration information, the one or more target BWPs belonging to theone or more BWPs.

The determination module may include: a first determination sub-moduleconfigured to determine the configuration information for performing theradio link monitoring operation on the one or more BWPs in accordancewith a predefined protocol; and/or a second determination sub-moduleconfigured to determine the configuration information for performing theradio link monitoring operation on the one or more BWPs in accordancewith a configuration configured by a network device.

The monitoring module is configured to perform the radio link monitoringoperation on the one or more target BWPs through one or more countingunits for the radio link monitoring operation. Each counting unit mayinclude a radio link in-sync counter, a radio link out-of-sync counterand a radio link failure timer.

Illustratively, there may exist at least one target BWP, and thecounting units may correspond to the target BWPs respectively.

As shown in FIG. 3, the monitoring module 202 may include a firstmonitoring sub-module 2021 configured to perform, through each countingunit, the radio link monitoring operation on the target BWPcorresponding to the counting unit. The first monitoring sub-module 2021is further configured to: during the radio link monitoring operation,when a radio link corresponding to a predetermined target BWP is in anout-of-sync state, cause the radio link out-of-sync counter of thecounting unit corresponding to the predetermined target BWP to count ina cumulative manner; and/or when the radio link corresponding to thepredetermined target BWP is in an in-sync state, cause the radio linkin-sync counter of the counting unit corresponding to the predeterminedtarget BWP to count in a cumulative manner.

The radio link out-of-sync counter of the counting unit corresponding tothe predetermined target BWP is merely configured to count the quantityof out-of-sync times when the radio link corresponding to thepredetermined target BWP is continuously in the out-of-sync state,and/or the radio link in-sync counter of the counting unit correspondingto the predetermined target BWP is merely configured to count thequantity of in-sync times when the radio link corresponding to thepredetermined target BWP is continuously in the in-sync state.

When the radio link is continuously in the out-of-sync state, it meansthat there is no in-sync state between two out-of-sync states. When theradio link is in the in-sync state after being in the out-of-sync state,the radio link out-of-sync counter for counting the quantity of theout-of-sync times of the radio link needs to be restarted.

When the radio link is continuously in the in-sync state, it means thatthere is no out-of-sync state between two in-sync states. When the radiolink is in the out-of-sync state after being in the in-sync state, theradio link in-sync counter for counting the quantity of the in-synctimes of the radio link needs to be restarted.

The first monitoring sub-module 2021 is further configured to: when avalue of the radio link out-of-sync counter reaches a firstpredetermined threshold, start the radio link failure timer whichbelongs to the same counting unit as the radio link out-of-sync counter;and/or during the operation of the radio link failure timer, when avalue of the radio link in-sync counter which belongs to the samecounting unit as the radio link failure timer reaches a secondpredetermined threshold, stop or reset the radio link failure timer.

The first monitoring sub-module 2021 is further configured to, when avalue of the radio link failure timer of any counting unit reaches apredetermined threshold, perform a radio link processing procedure. Theradio link processing procedure may include at least one of: trigging aradio link failure operation; performing a deactivation procedure, areplacement procedure or a reconfiguration procedure on the BWP for theradio link monitoring operation; triggering a failure event for the BWPfor the radio link monitoring operation; performing the deactivationprocedure, the replacement procedure or the reconfiguration procedure onthe BWP corresponding to the counting unit including the radio linkfailure timer whose value reaches the predetermined threshold; andtriggering the failure event for the BWP corresponding to the countingunit including the radio link failure timer whose value reaches thepredetermined threshold.

The first monitoring sub-module 2021 is further configured to, when thevalue of each radio link failure timer corresponding to each countingunit reaches the predetermined threshold, perform a radio linkprocessing procedure. The radio link processing procedure may include atleast one of: triggering the radio link failure operation; performingthe deactivation procedure, the replacement procedure or thereconfiguration procedure on the BWP for the radio link monitoringoperation; and triggering the failure event for one or more BWPsmonitored by the radio link monitoring operation.

Illustratively, there may exist at least two target BWPs correspondingto one counting unit.

As shown in FIG. 3, the monitoring module 202 may further include asecond monitoring sub-module 2022 configured to perform, through thecounting unit, the radio link monitoring operation on each target BWPcorresponding to the counting unit. The second monitoring sub-module2022 is further configured to: during the radio link monitoringoperation, when a radio link corresponding to any one target BWPmonitored by the counting unit is in the out-of-sync state, cause theradio link out-of-sync counter of the counting unit to count in acumulative manner; and/or when the radio link corresponding to any onetarget BWP monitored by the counting unit is in the in-sync state, causethe radio link in-sync counter of the counting unit to count in acumulative manner.

The radio link out-of-sync counter of the counting unit corresponding toeach target BWP is merely configured to count the quantity ofout-of-sync times when the radio link corresponding to the target BWPitself is continuously in the out-of-sync state, and/or the radio linkin-sync counter of the counting unit corresponding to each target BWP ismerely configured to count the quantity of in-sync times when the radiolink corresponding to the target BWP itself is continuously in thein-sync state.

When the radio link is continuously in the out-of-sync state, it meansthat there is no in-sync state between two out-of-sync states. When theradio link is in the in-sync state after being in the out-of-sync state,the radio link out-of-sync counter for counting the quantity of theout-of-sync times of the radio link needs to be restarted.

When the radio link is continuously in the in-sync state, it means thatthere is no out-of-sync state between two in-sync states. When the radiolink is in the out-of-sync state after being in the in-sync state, theradio link in-sync counter for counting the quantity of the in-synctimes of the radio link needs to be restarted.

The second monitoring sub-module 2022 is further configured to: when thevalue of the radio link out-of-sync counter reaches the firstpredetermined threshold, start the radio link failure timer whichbelongs to the same counting unit as the radio link out-of-sync counter;and/or during the operation of the radio link failure timer, when thevalue of the radio link in-sync counter which belongs to the samecounting unit as the radio link failure timer reaches the secondpredetermined threshold, stop or reset the radio link failure timer.

The second monitoring sub-module 2022 is further configured to, when thevalue of the radio link failure timer of any counting unit reaches thepredetermined threshold, perform a radio link processing procedure. Theradio link processing procedure may include at least one of: triggingthe radio link failure operation; triggering the failure event for oneor more BWPs monitored by the radio link monitoring operation;triggering the failure event for the BWP corresponding to the countingunit including the radio link failure timer whose value reaches thepredetermined threshold; performing the deactivation procedure, thereplacement procedure or the reconfiguration procedure on the BWPcorresponding to the counting unit including the radio link failuretimer whose value reaches the predetermined threshold; and performingthe deactivation procedure, the replacement procedure or thereconfiguration procedure on the BWP for the radio link monitoringoperation.

Illustratively, there may exist at least three target BWPs which aredivided into at least one first portion and at least one second portion.The first portion may include at least one target BWP, and each targetBWP may correspond to one counting unit. The second portion may includeat least two target BWPs, and each target BWP may correspond to onecounting unit.

As shown in FIG. 3, the monitoring module 202 may further include athird monitoring sub-module 2023 configured to perform, through eachcounting unit, the radio link monitoring operation on the target BWPcorresponding to the counting unit. The third monitoring sub-module 2023is further configured to: during the radio link monitoring operation oneach target BWP of the first portion, when a radio link corresponding toa predetermined target BWP is in the out-of-sync state, cause the radiolink out-of-sync counter of the counting unit corresponding to thepredetermined target BWP to count in a cumulative manner, and/or whenthe radio link corresponding to the predetermined target BWP is in thein-sync state, cause the radio link in-sync counter of the counting unitcorresponding to the predetermined target BWP to count in a cumulativemanner; and during the radio link monitoring operation on each targetBWP of the second portion, when a radio link corresponding to any onetarget BWP monitored by the counting unit is in the out-of-sync state,cause the radio link out-of-sync counter of the counting unitcorresponding to the target BWP to count in a cumulative manner, and/orwhen the radio link corresponding to any one target BWP monitored by thecounting unit is in the in-sync state, cause the radio link in-synccounter of the counting unit corresponding to the target BWP to count ina cumulative manner.

During the radio link monitoring operation on each target BWP of thefirst portion, the radio link out-of-sync counter of the counting unitcorresponding to the predetermined target BWP is merely configured tocount the quantity of out-of-sync times when the radio linkcorresponding to the predetermined target BWP is continuously in theout-of-sync state, and/or the radio link in-sync counter of the countingunit corresponding to the predetermined target BWP is merely configuredto count the quantity of in-sync times when the radio link correspondingto the predetermined target BWP is continuously in the in-sync state.

During the radio link monitoring operation on each target BWP of thesecond portion, the radio link out-of-sync counter of the counting unitcorresponding to each target BWP is merely configured to count thequantity of out-of-sync times when the radio link corresponding to thetarget BWP itself is continuously in the out-of-sync state, and/or theradio link in-sync counter of the counting unit corresponding to eachtarget BWP is merely configured to count the quantity of in-sync timeswhen the radio link corresponding to the target BWP itself iscontinuously in the in-sync state.

When the radio link is continuously in the out-of-sync state, it meansthat there is no in-sync state between two out-of-sync states. When theradio link is in the in-sync state after being in the out-of-sync state,the radio link out-of-sync counter for counting the quantity of theout-of-sync times of the radio link needs to be restarted.

When the radio link is continuously in the in-sync state, it means thatthere is no out-of-sync state between two in-sync states. When the radiolink is in the out-of-sync state after being in the in-sync state, theradio link in-sync counter for counting the quantity of the in-synctimes of the radio link needs to be restarted.

The third monitoring sub-module 2023 is further configured to: when thevalue of the radio link out-of-sync counter reaches the firstpredetermined threshold, start the radio link failure timer whichbelongs to the same counting unit as the radio link out-of-sync counter;and during the operation of the radio link failure timer, when the valueof the radio link in-sync counter which belongs to the same countingunit as the radio link failure timer reaches the second predeterminedthreshold, stop or reset the radio link failure timer.

The third monitoring sub-module 2023 is further configured to, duringthe radio link monitoring operation on each target BWP of the firstportion, when the value of the radio link failure timer of any countingunit reaches the predetermined threshold, perform a radio linkprocessing procedure. The radio link processing procedure may include atleast one of: trigging the radio link failure operation; triggering thefailure event for one or more BWPs monitored by the radio linkmonitoring operation; triggering the failure event for the BWPcorresponding to the counting unit including the radio link failuretimer whose value reaches the predetermined threshold; performing thedeactivation procedure, the replacement procedure or the reconfigurationprocedure on the BWP corresponding to the counting unit including theradio link failure timer whose value reaches the predeterminedthreshold; and performing the deactivation procedure, the replacementprocedure or the reconfiguration procedure on the BWP for the radio linkmonitoring operation.

The third monitoring sub-module 2023 is further configured to, duringthe radio link monitoring operation on each target BWP of the firstportion, when the value of the radio link failure timer corresponding toeach counting unit reaches the predetermined threshold, perform a radiolink processing procedure. The radio link processing procedure mayinclude at least one of: trigging the radio link failure operation;performing the deactivation procedure, the replacement procedure or thereconfiguration procedure on the BWP for the radio link monitoringoperation; and triggering the failure event for one or more BWPsmonitored by the radio link monitoring operation.

The third monitoring sub-module 2023 is further configured to, duringthe radio link monitoring operation on each target BWP of the secondportion, when the value of the radio link failure timer corresponding toeach counting unit reaches the predetermined threshold, preform a radiolink processing procedure. The radio link processing procedure mayinclude at least one of: trigging the radio link failure operation;triggering the failure event for one or more BWPs monitored by the radiolink monitoring operation; triggering the failure event for the BWPcorresponding to the counting unit including the radio link failuretimer whose value reaches the predetermined threshold; performing thedeactivation procedure, the replacement procedure or the reconfigurationprocedure on the BWP corresponding to the counting unit including theradio link failure timer whose value reaches the predeterminedthreshold; and performing the deactivation procedure, the replacementprocedure or the reconfiguration procedure on the BWP for the radio linkmonitoring operation.

The UE may further include a timeout processing module configured to:when the failure event is triggered for each BWP, perform thedeactivation procedure, the replacement procedure or the reconfigurationprocedure on the BWP for which the failure event is triggered; and whenthe failure event is triggered for each BWP, perform the deactivationprocedure, the replacement procedure or the reconfiguration procedure onthe BWP for the radio link monitoring operation.

When determining that the radio link corresponding to each target BWP isin the out-of-sync state, each of the first monitoring sub-module 2021,the second monitoring sub-module 2022 and the third monitoringsub-module 2023 is further configured to, when received quality of areference signal for the target BWP does not meet a predeterminedcondition and/or when an indication indicating that the target BWP orthe current UE is in the out-of-sync state has been received from a lowlayer, determine that the radio link corresponding to the target BWP isin the out-of-sync state. When determining that the radio linkcorresponding to each target BWP is in the in-sync state, each of thefirst monitoring sub-module 2021, the second monitoring sub-module 2022and the third monitoring sub-module 2023 is further configured to, whenthe received quality of the reference signal for the target BWP meetsthe predetermined condition and/or when an indication indicating thatthe target BWP or the current UE is in the in-sync state has beenreceived from the low layer, determine that the radio link correspondingto the target BWP is in the in-sync state.

In addition, the UE may further include: a first reception moduleconfigured to receive indication information from the network device,the indication information including at least one of indicationinformation for deactivating one or more BWPs for the radio linkmonitoring operation, and indication information for deactivating one ormore BWPs for the radio link monitoring operation and activating one ormore BWPs for the radio link monitoring operation; and a first executionmodule configured to perform at least one of the following processingsin accordance with the indication information: resetting at least one ofthe radio link in-sync counter, the radio link out-of-sync counter andthe radio link failure timer of the counting unit corresponding to eachto-be-deactivated BWP, or not resetting any one of the radio linkin-sync counter, the radio link out-of-sync counter and the radio linkfailure timer of the counting unit corresponding to eachto-be-deactivated BWP; stopping the radio link monitoring operation oneach to-be-deactivated BWP; and when the radio link monitoring operationis currently being performed on each to-be-deactivated BWP, omitting theindication information.

The first execution module is further configured to: after stopping theradio link monitoring operation on the to-be-deactivated BWP inaccordance with the indication information, select one BWP in accordancewith a predetermined rule; and perform the radio link monitoringoperation on the selected BWP through the counting unit corresponding tothe to-be-deactivated BWP or through the counting unit corresponding tothe selected BWP.

In addition, the UE may further include: a second reception moduleconfigured to receive indication information from the network device,the indication information including one of indication information forreplacing or reconfiguring one or more BWPs for the radio linkmonitoring operation, and indication information for replacing orreconfiguring one or more BWPs for the radio link monitoring operationand one or more replaced or reconfigured BWPs for the radio linkmonitoring operation; and a second execution module configured toperform at least of the following processings in accordance with theindication information: resetting at least one of the radio link in-synccounter, the radio link out-of-sync counter and the radio link failuretimer of the counting unit corresponding to the to-be-replaced orto-be-reconfigured BWP, or not resetting any one of the radio linkin-sync counter, the radio link out-of-sync counter and the radio linkfailure timer of the counting unit corresponding to the to-be-replacedor to-be-reconfigured BWP; stopping the radio link monitoring operationon the to-be-replaced or to-be-reconfigured BWP; and performing theradio link monitoring operation on the replaced or reconfigured BWP.

The second execution module is further configured to: after performingthe radio link monitoring operation on the to-be-replaced orto-be-reconfigured BWP in accordance with the indication information,select one BWP in accordance with the predetermined rule; and performthe radio link monitoring operation on the selected BWP through thecounting unit corresponding to the to-be-replaced or to-be-reconfiguredBWP or the counting unit corresponding to the selected BWP.

As shown in FIG. 4, the present disclosure further provides in someembodiments a UE 400, including a memory 401, a processor 402, and acomputer program 4011 stored in the memory 401 and executed by theprocessor 402. The processor 402 is configured to execute the computerprogram so as to: determine configuration information for performing aradio link monitoring operation on one or more BWPs of a systembandwidth; and perform the radio link monitoring operation on one ormore target BWPs in accordance with the configuration information, theone or more target BWPs belonging to the one or more BWPs.

It should be appreciated that, the memory 401 may be a volatile memory,a nonvolatile memory or both. The nonvolatile memory may be a Read-OnlyMemory (ROM), a Programmable ROM (PROM), an Erasable PROM (EPROM), anelectrically EPROM (EEPROM) or a flash memory. The volatile memory maybe a Random Access Memory (RAM) which serves as an external high-speedcache. Illustratively but non-restrictively, the RAM may include StaticRAM (SRAM), Dynamic RAM (DRAM), Synchronous DRAM (SDRAM), Double DataRate SDRAM (DDRSDRAM), Enhanced SDRAM (ESDRAM), Synchronous Link DRAM(SLDRAM) or Direct Rambus RAM (DRRAM). The memory 401 intends toinclude, but not limited to, the above-mentioned and any otherappropriate memories.

To be specific, the processor 402 is further configured to execute thecomputer program so as to: determine the configuration information forperforming the radio link monitoring operation on the one or more BWPsin accordance with a predefined protocol; and/or determine theconfiguration information for performing the radio link monitoringoperation on the one or more BWPs in accordance with a configurationconfigured by a network device.

To be specific, the processor 402 is further configured to execute thecomputer program so as to perform the radio link monitoring operation onthe one or more target BWPs through one or more counting units for theradio link monitoring operation. Each counting unit may include a radiolink in-sync counter, a radio link out-of-sync counter and a radio linkfailure timer.

In a possible embodiment of the present disclosure, there may exist atleast one target BWP, and the counting units may correspond to thetarget BWPs respectively. The processor 402 is further configured toexecute the computer program so as to: perform, through each countingunit, the radio link monitoring operation on the target BWPcorresponding to the counting unit. To be specific, the processor 402 isfurther configured to execute the computer program so as to: during theradio link monitoring operation, when a radio link corresponding to apredetermined target BWP is in an out-of-sync state, cause the radiolink out-of-sync counter of the counting unit corresponding to thepredetermined target BWP to count in a cumulative manner; and/or whenthe radio link corresponding to the predetermined target BWP is in anin-sync state, cause the radio link in-sync counter of the counting unitcorresponding to the predetermined target BWP to count in a cumulativemanner.

The radio link out-of-sync counter of the counting unit corresponding tothe predetermined target BWP is merely configured to count the quantityof out-of-sync times when the radio link corresponding to thepredetermined target BWP is continuously in the out-of-sync state,and/or the radio link in-sync counter of the counting unit correspondingto the predetermined target BWP is merely configured to count thequantity of in-sync times when the radio link corresponding to thepredetermined target BWP is continuously in the in-sync state.

In a possible embodiment of the present disclosure, the processor 402 isfurther configured to execute the computer program so as to, when avalue of the radio link failure timer of any counting unit reaches apredetermined threshold, perform a radio link processing procedure. Theradio link processing procedure may include at least one of: trigging aradio link failure operation; performing a deactivation procedure, areplacement procedure or a reconfiguration procedure on the BWP for theradio link monitoring operation; triggering a failure event for the BWPfor the radio link monitoring operation; performing the deactivationprocedure, the replacement procedure or the reconfiguration procedure onthe BWP corresponding to the counting unit including the radio linkfailure timer whose value reaches the predetermined threshold; andtriggering the failure event for the BWP corresponding to the countingunit including the radio link failure timer whose value reaches thepredetermined threshold.

In a possible embodiment of the present disclosure, the processor 402 isfurther configured to execute the computer program so as to, when thevalue of each radio link failure timer corresponding to each countingunit reaches the predetermined threshold, perform a radio linkprocessing procedure. The radio link processing procedure may include atleast one of: triggering the radio link failure operation; performingthe deactivation procedure, the replacement procedure or thereconfiguration procedure on the BWP for the radio link monitoringoperation; and triggering the failure event for one or more BWPsmonitored by the radio link monitoring operation.

In a possible embodiment of the present disclosure, there may exist atleast two target BWPs corresponding to one counting unit. The processor402 is further configured to execute the computer program so as toperform, through the counting unit, the radio link monitoring operationon each target BWP corresponding to the counting unit. To be specific,the processor 402 is further configured to execute the computer programso as to: during the radio link monitoring operation, when a radio linkcorresponding to any one target BWP monitored by the counting unit is inthe out-of-sync state, cause the radio link out-of-sync counter of thecounting unit to count in a cumulative manner; and/or when the radiolink corresponding to any one target BWP monitored by the counting unitis in the in-sync state, cause the radio link in-sync counter of thecounting unit to count in a cumulative manner.

The radio link out-of-sync counter of the counting unit corresponding toeach target BWP is merely configured to count the quantity ofout-of-sync times when the radio link corresponding to the target BWPitself is continuously in the out-of-sync state, and/or the radio linkin-sync counter of the counting unit corresponding to each target BWP ismerely configured to count the quantity of in-sync times when the radiolink corresponding to the target BWP itself is continuously in thein-sync state.

In a possible embodiment of the present disclosure, the processor 402 isfurther configured to execute the computer program so as to, when thevalue of the radio link failure timer of any counting unit reaches thepredetermined threshold, perform a radio link processing procedure. Theradio link processing procedure may include at least one of: triggingthe radio link failure operation; triggering the failure event for oneor more BWPs monitored by the radio link monitoring operation;triggering the failure event for the BWP corresponding to the countingunit including the radio link failure timer whose value reaches thepredetermined threshold; performing the deactivation procedure, thereplacement procedure or the reconfiguration procedure on the BWPcorresponding to the counting unit including the radio link failuretimer whose value reaches the predetermined threshold; and performingthe deactivation procedure, the replacement procedure or thereconfiguration procedure on the BWP for the radio link monitoringoperation.

In a possible embodiment of the present disclosure, there may exist atleast three target BWPs which are divided into at least one firstportion and at least one second portion. The first portion may includeat least one target BWP, and each target BWP may correspond to onecounting unit. The second portion may include at least two target BWPs,and each target BWP may correspond to one counting unit. The processor402 is further configured to execute the computer program so as toperform, through each counting unit, the radio link monitoring operationon the target BWP corresponding to the counting unit. To be specific,the processor 402 is further configured to execute the computer programso as to: during the radio link monitoring operation on each target BWPof the first portion, when a radio link corresponding to a predeterminedtarget BWP is in the out-of-sync state, cause the radio link out-of-synccounter of the counting unit corresponding to the predetermined targetBWP to count in a cumulative manner, and/or when the radio linkcorresponding to the predetermined target BWP is in the in-sync state,cause the radio link in-sync counter of the counting unit correspondingto the predetermined target BWP to count in a cumulative manner; andduring the radio link monitoring operation on each target BWP of thesecond portion, when a radio link corresponding to any one target BWPmonitored by the counting unit is in the out-of-sync state, cause theradio link out-of-sync counter of the counting unit corresponding to thetarget BWP to count in a cumulative manner, and/or when the radio linkcorresponding to any one target BWP monitored by the counting unit is inthe in-sync state, cause the radio link in-sync counter of the countingunit corresponding to the target BWP to count in a cumulative manner.

During the radio link monitoring operation on each target BWP of thefirst portion, the radio link out-of-sync counter of the counting unitcorresponding to the predetermined target BWP is merely configured tocount the quantity of out-of-sync times when the radio linkcorresponding to the predetermined target BWP is continuously in theout-of-sync state, and/or the radio link in-sync counter of the countingunit corresponding to the predetermined target BWP is merely configuredto count the quantity of in-sync times when the radio link correspondingto the predetermined target BWP is continuously in the in-sync state.

During the radio link monitoring operation on each target BWP of thesecond portion, the radio link out-of-sync counter of the counting unitcorresponding to each target BWP is merely configured to count thequantity of out-of-sync times when the radio link corresponding to thetarget BWP itself is continuously in the out-of-sync state, and/or theradio link in-sync counter of the counting unit corresponding to eachtarget BWP is merely configured to count the quantity of in-sync timeswhen the radio link corresponding to the target BWP itself iscontinuously in the in-sync state.

The processor 402 is further configured to execute the computer programso as to: when a value of the radio link out-of-sync counter reaches afirst predetermined threshold, start the radio link failure timer whichbelongs to the same counting unit as the radio link out-of-sync counter;and during the operation of the radio link failure timer, when a valueof the radio link in-sync counter which belongs to the same countingunit as the radio link failure timer reaches a second predeterminedthreshold, stop or reset the radio link failure timer.

In a possible embodiment of the present disclosure, the processor 402 isfurther configured to execute the computer program so as to, during theradio link monitoring operation on each target BWP of the first portion,when the value of the radio link failure timer of any counting unitreaches the predetermined threshold, perform a radio link processingprocedure. The radio link processing procedure may include at least oneof: trigging the radio link failure operation; triggering the failureevent for the BWP corresponding to the counting unit including the radiolink failure timer whose value reaches the predetermined threshold; andperforming the deactivation procedure, the replacement procedure or thereconfiguration procedure on the BWP for the radio link monitoringoperation.

In a possible embodiment of the present disclosure, the processor 402 isfurther configured to execute the computer program so as to, during theradio link monitoring operation on each target BWP of the first portion,when the value of the radio link failure timer corresponding to eachcounting unit reaches the predetermined threshold, perform a radio linkprocessing procedure. The radio link processing procedure may include atleast one of: trigging the radio link failure operation; performing thedeactivation procedure, the replacement procedure or the reconfigurationprocedure on the BWP for the radio link monitoring operation; andtriggering the failure event for one or more BWPs monitored by the radiolink monitoring operation.

In a possible embodiment of the present disclosure, the processor 402 isfurther configured to execute the computer program so as to, during theradio link monitoring operation on each target BWP of the secondportion, when the value of the radio link failure timer corresponding toeach counting unit reaches the predetermined threshold, preform a radiolink processing procedure. The radio link processing procedure mayinclude at least one of: trigging the radio link failure operation;triggering the failure event for one or more BWPs monitored by the radiolink monitoring operation; triggering the failure event for the BWPcorresponding to the counting unit including the radio link failuretimer whose value reaches the predetermined threshold; and performingthe deactivation procedure, the replacement procedure or thereconfiguration procedure on the BWP corresponding to the counting unitincluding the radio link failure timer whose value reaches thepredetermined threshold.

In a possible embodiment of the present disclosure, the processor 402 isfurther configured to execute the computer program so as to: when thefailure event is triggered for each BWP, perform the deactivationprocedure, the replacement procedure or the reconfiguration procedure onthe BWP for which the failure event is triggered; and when the failureevent is triggered for each BWP, perform the deactivation procedure, thereplacement procedure or the reconfiguration procedure on the BWP forthe radio link monitoring operation.

In a possible embodiment of the present disclosure, the processor 402 isfurther configured to execute the computer program so as to: whenreceived quality of a reference signal for the target BWP does not meeta predetermined condition and/or when an indication indicating that thetarget BWP or the current UE is in the out-of-sync state has beenreceived from a low layer, determine that the radio link correspondingto the target BWP is in the out-of-sync state; and when the receivedquality of the reference signal for the target BWP meets thepredetermined condition and/or when an indication indicating that thetarget BWP or the current UE is in the in-sync state has been receivedfrom the low layer, determine that the radio link corresponding to thetarget BWP is in the in-sync state.

In a possible embodiment of the present disclosure, the processor 402 isfurther configured to execute the computer program, so as to: receiveindication information from the network device, the indicationinformation including at least one of indication information fordeactivating one or more BWPs for the radio link monitoring operation,and indication information for deactivating one or more BWPs for theradio link monitoring operation and activating one or more BWPs for theradio link monitoring operation; and perform at least one of thefollowing processings in accordance with the indication information:resetting at least one of the radio link in-sync counter, the radio linkout-of-sync counter and the radio link failure timer of the countingunit corresponding to each to-be-deactivated BWP, or not resetting anyone of the radio link in-sync counter, the radio link out-of-synccounter and the radio link failure timer of the counting unitcorresponding to each to-be-deactivated BWP; stopping the radio linkmonitoring operation on each to-be-deactivated BWP; and when the radiolink monitoring operation is currently being performed on eachto-be-deactivated BWP, omitting the indication information.

In a possible embodiment of the present disclosure, the processor 402 isfurther configured to execute the computer program so as to: afterstopping the radio link monitoring operation on the to-be-deactivatedBWP in accordance with the indication information, select one BWP inaccordance with a predetermined rule; and perform the radio linkmonitoring operation on the selected BWP through the counting unitcorresponding to the to-be-deactivated BWP or through the counting unitcorresponding to the selected BWP.

In a possible embodiment of the present disclosure, the processor 402 isfurther configured to execute the computer program so as to: receiveindication information from the network device, the indicationinformation including one of indication information for replacing orreconfiguring one or more BWPs for the radio link monitoring operation,and indication information for replacing or reconfiguring one or moreBWPs for the radio link monitoring operation and one or more replaced orreconfigured BWPs for the radio link monitoring operation; and performat least of the following processings in accordance with the indicationinformation: resetting at least one of the radio link in-sync counter,the radio link out-of-sync counter and the radio link failure timer ofthe counting unit corresponding to the to-be-replaced orto-be-reconfigured BWP, or not resetting any one of the radio linkin-sync counter, the radio link out-of-sync counter and the radio linkfailure timer of the counting unit corresponding to the to-be-replacedor to-be-reconfigured BWP; stopping the radio link monitoring operationon the to-be-replaced or to-be-reconfigured BWP; and performing theradio link monitoring operation on the replaced or reconfigured BWP.

In a possible embodiment of the present disclosure, the processor 402 isfurther configured to execute the computer program so as to: afterperforming the radio link monitoring operation on the to-be-replaced orto-be-reconfigured BWP in accordance with the indication information,select one BWP in accordance with the predetermined rule; and performthe radio link monitoring operation on the selected BWP through thecounting unit corresponding to the to-be-replaced or to-be-reconfiguredBWP or the counting unit corresponding to the selected BWP.

The present disclosure further provides in some embodiments acomputer-readable storage medium storing therein a computer program. Thecomputer program is executed by a processor so as to: determineconfiguration information for performing a radio link monitoringoperation on one or more BWPs of a system bandwidth; and a monitoringmodule configured to perform the radio link monitoring operation on oneor more target BWPs in accordance with the configuration information,the one or more target BWPs belonging to the one or more BWPs.

In the embodiments of the present disclosure, the computer-readablestorage medium may be a volatile or non-volatile computer-readablestorage medium.

In a possible embodiment of the present disclosure, the computer programis further executed by the processor so as to: determine theconfiguration information for performing the radio link monitoringoperation on the one or more BWPs in accordance with a predefinedprotocol; and/or determine the configuration information for performingthe radio link monitoring operation on the one or more BWPs inaccordance with a configuration configured by a network device.

In a possible embodiment of the present disclosure, the computer programis further executed by the processor so as to: perform the radio linkmonitoring operation on the one or more target BWPs through one or morecounting units for the radio link monitoring operation. Each countingunit may include a radio link in-sync counter, a radio link out-of-synccounter and a radio link failure timer.

In a possible embodiment of the present disclosure, there may exist atleast one target BWP, and the counting units may correspond to thetarget BWPs respectively. The computer program is further executed bythe processor so as to: perform, through each counting unit, the radiolink monitoring operation on the target BWP corresponding to thecounting unit. To be specific, the computer program is further executedby the processor so as to: during the radio link monitoring operation,when a radio link corresponding to a predetermined target BWP is in anout-of-sync state, cause the radio link out-of-sync counter of thecounting unit corresponding to the predetermined target BWP to count ina cumulative manner; and/or when the radio link corresponding to thepredetermined target BWP is in an in-sync state, cause the radio linkin-sync counter of the counting unit corresponding to the predeterminedtarget BWP to count in a cumulative manner.

The radio link out-of-sync counter of the counting unit corresponding tothe predetermined target BWP is merely configured to count the quantityof out-of-sync times when the radio link corresponding to thepredetermined target BWP is continuously in the out-of-sync state,and/or the radio link in-sync counter of the counting unit correspondingto the predetermined target BWP is merely configured to count thequantity of in-sync times when the radio link corresponding to thepredetermined target BWP is continuously in the in-sync state.

The computer program is further executed by the processor so as to: whena value of the radio link out-of-sync counter reaches a firstpredetermined threshold, start the radio link failure timer whichbelongs to the same counting unit as the radio link out-of-sync counter;and during the operation of the radio link failure timer, when a valueof the radio link in-sync counter which belongs to the same countingunit as the radio link failure timer reaches a second predeterminedthreshold, stop or reset the radio link failure timer.

In a possible embodiment of the present disclosure, the computer programis further executed by the processor so as to, when a value of the radiolink failure timer of any counting unit reaches a predeterminedthreshold, perform a radio link processing procedure. The radio linkprocessing procedure may include at least one of: trigging a radio linkfailure operation; performing a deactivation procedure, a replacementprocedure or a reconfiguration procedure on the BWP for the radio linkmonitoring operation; triggering a failure event for the BWP for theradio link monitoring operation; performing the deactivation procedure,the replacement procedure or the reconfiguration procedure on the BWPcorresponding to the counting unit including the radio link failuretimer whose value reaches the predetermined threshold; and triggeringthe failure event for the BWP corresponding to the counting unitincluding the radio link failure timer whose value reaches thepredetermined threshold.

In a possible embodiment of the present disclosure, the computer programis further executed by the processor so as to, when the value of eachradio link failure timer corresponding to each counting unit reaches thepredetermined threshold, perform a radio link processing procedure. Theradio link processing procedure may include at least one of: triggeringthe radio link failure operation; performing the deactivation procedure,the replacement procedure or the reconfiguration procedure on the BWPfor the radio link monitoring operation; and triggering the failureevent for one or more BWPs monitored by the radio link monitoringoperation.

In a possible embodiment of the present disclosure, there may exist atleast two target BWPs corresponding to one counting unit. The computerprogram is further executed by the processor so as to perform, throughthe counting unit, the radio link monitoring operation on each targetBWP corresponding to the counting unit. To be specific, the computerprogram is further executed by the processor so as to: during the radiolink monitoring operation, when a radio link corresponding to any onetarget BWP monitored by the counting unit is in the out-of-sync state,cause the radio link out-of-sync counter of the counting unit to countin a cumulative manner; and/or when the radio link corresponding to anyone target BWP monitored by the counting unit is in the in-sync state,cause the radio link in-sync counter of the counting unit to count in acumulative manner.

The radio link out-of-sync counter of the counting unit corresponding toeach target BWP is merely configured to count the quantity ofout-of-sync times when the radio link corresponding to the target BWPitself is continuously in the out-of-sync state, and/or the radio linkin-sync counter of the counting unit corresponding to each target BWP ismerely configured to count the quantity of in-sync times when the radiolink corresponding to the target BWP itself is continuously in thein-sync state.

The computer program is further executed by the processor so as to: whena value of the radio link out-of-sync counter reaches a firstpredetermined threshold, start the radio link failure timer whichbelongs to the same counting unit as the radio link out-of-sync counter;and during the operation of the radio link failure timer, when a valueof the radio link in-sync counter which belongs to the same countingunit as the radio link failure timer reaches a second predeterminedthreshold, stop or reset the radio link failure timer.

In a possible embodiment of the present disclosure, the computer programis further executed by the processor so as to, when the value of theradio link failure timer of any counting unit reaches the predeterminedthreshold, perform a radio link processing procedure. The radio linkprocessing procedure may include at least one of: trigging the radiolink failure operation; triggering the failure event for one or moreBWPs monitored by the radio link monitoring operation; triggering thefailure event for the BWP corresponding to the counting unit includingthe radio link failure timer whose value reaches the predeterminedthreshold; performing the deactivation procedure, the replacementprocedure or the reconfiguration procedure on the BWP corresponding tothe counting unit including the radio link failure timer whose valuereaches the predetermined threshold; and performing the deactivationprocedure, the replacement procedure or the reconfiguration procedure onthe BWP for the radio link monitoring operation.

In a possible embodiment of the present disclosure, there may exist atleast three target BWPs which are divided into at least one firstportion and at least one second portion. The first portion may includeat least one target BWP, and each target BWP may correspond to onecounting unit. The second portion may include at least two target BWPs,and each target BWP may correspond to one counting unit. The computerprogram is further executed by the processor so as to perform, througheach counting unit, the radio link monitoring operation on the targetBWP corresponding to the counting unit. To be specific, the computerprogram is further executed by the processor so as to: during the radiolink monitoring operation on each target BWP of the first portion, whena radio link corresponding to a predetermined target BWP is in theout-of-sync state, cause the radio link out-of-sync counter of thecounting unit corresponding to the predetermined target BWP to count ina cumulative manner, and/or when the radio link corresponding to thepredetermined target BWP is in the in-sync state, cause the radio linkin-sync counter of the counting unit corresponding to the predeterminedtarget BWP to count in a cumulative manner; and during the radio linkmonitoring operation on each target BWP of the second portion, when aradio link corresponding to any one target BWP monitored by the countingunit is in the out-of-sync state, cause the radio link out-of-synccounter of the counting unit corresponding to the target BWP to count ina cumulative manner, and/or when the radio link corresponding to any onetarget BWP monitored by the counting unit is in the in-sync state, causethe radio link in-sync counter of the counting unit corresponding to thetarget BWP to count in a cumulative manner.

During the radio link monitoring operation on each target BWP of thefirst portion, the radio link out-of-sync counter of the counting unitcorresponding to the predetermined target BWP is merely configured tocount the quantity of out-of-sync times when the radio linkcorresponding to the predetermined target BWP is continuously in theout-of-sync state, and/or the radio link in-sync counter of the countingunit corresponding to the predetermined target BWP is merely configuredto count the quantity of in-sync times when the radio link correspondingto the predetermined target BWP is continuously in the in-sync state.

During the radio link monitoring operation on each target BWP of thesecond portion, the radio link out-of-sync counter of the counting unitcorresponding to each target BWP is merely configured to count thequantity of out-of-sync times when the radio link corresponding to thetarget BWP itself is continuously in the out-of-sync state, and/or theradio link in-sync counter of the counting unit corresponding to eachtarget BWP is merely configured to count the quantity of in-sync timeswhen the radio link corresponding to the target BWP itself iscontinuously in the in-sync state.

The computer program is further executed by the processor so as to: whena value of the radio link out-of-sync counter reaches a firstpredetermined threshold, start the radio link failure timer whichbelongs to the same counting unit as the radio link out-of-sync counter;and during the operation of the radio link failure timer, when a valueof the radio link in-sync counter which belongs to the same countingunit as the radio link failure timer reaches a second predeterminedthreshold, stop or reset the radio link failure timer.

In a possible embodiment of the present disclosure, the computer programis further executed by the processor so as to, during the radio linkmonitoring operation on each target BWP of the first portion, when thevalue of the radio link failure timer of any counting unit reaches thepredetermined threshold, perform a radio link processing procedure. Theradio link processing procedure may include at least one of: triggingthe radio link failure operation; triggering the failure event for theBWP corresponding to the counting unit including the radio link failuretimer whose value reaches the predetermined threshold; and performingthe deactivation procedure, the replacement procedure or thereconfiguration procedure on the BWP for the radio link monitoringoperation.

In a possible embodiment of the present disclosure, the computer programis further executed by the processor so as to, during the radio linkmonitoring operation on each target BWP of the first portion, when thevalue of the radio link failure timer corresponding to each countingunit reaches the predetermined threshold, perform a radio linkprocessing procedure. The radio link processing procedure may include atleast one of: trigging the radio link failure operation; performing thedeactivation procedure, the replacement procedure or the reconfigurationprocedure on the BWP for the radio link monitoring operation; andtriggering the failure event for one or more BWPs monitored by the radiolink monitoring operation.

In a possible embodiment of the present disclosure, the computer programis further executed by the processor so as to, during the radio linkmonitoring operation on each target BWP of the second portion, when thevalue of the radio link failure timer corresponding to each countingunit reaches the predetermined threshold, preform a radio linkprocessing procedure. The radio link processing procedure may include atleast one of: trigging the radio link failure operation; triggering thefailure event for one or more BWPs monitored by the radio linkmonitoring operation; triggering the failure event for the BWPcorresponding to the counting unit including the radio link failuretimer whose value reaches the predetermined threshold; performing thedeactivation procedure, the replacement procedure or the reconfigurationprocedure on the BWP corresponding to the counting unit including theradio link failure timer whose value reaches the predeterminedthreshold; and performing the deactivation procedure, the replacementprocedure or the reconfiguration procedure on the BWP for the radio linkmonitoring operation.

In a possible embodiment of the present disclosure, the computer programis further executed by the processor so as to: when the failure event istriggered for each BWP, perform the deactivation procedure, thereplacement procedure or the reconfiguration procedure on the BWP forwhich the failure event is triggered; and when the failure event istriggered for each BWP, perform the deactivation procedure, thereplacement procedure or the reconfiguration procedure on the BWP forthe radio link monitoring operation.

In a possible embodiment of the present disclosure, the computer programis further executed by the processor so as to: when received quality ofa reference signal for the target BWP does not meet a predeterminedcondition and/or when an indication indicating that the target BWP orthe current UE is in the out-of-sync state has been received from a lowlayer, determine that the radio link corresponding to the target BWP isin the out-of-sync state; and/or when the received quality of thereference signal for the target BWP meets the predetermined conditionand/or when an indication indicating that the target BWP or the currentUE is in the in-sync state has been received from the low layer,determine that the radio link corresponding to the target BWP is in thein-sync state.

In a possible embodiment of the present disclosure, the computer programis further executed by the processor so as to: receive indicationinformation from the network device, the indication informationincluding at least one of indication information for deactivating one ormore BWPs for the radio link monitoring operation, and indicationinformation for deactivating one or more BWPs for the radio linkmonitoring operation and activating one or more BWPs for the radio linkmonitoring operation; and perform at least one of the followingprocessings in accordance with the indication information: resetting atleast one of the radio link in-sync counter, the radio link out-of-synccounter and the radio link failure timer of the counting unitcorresponding to each to-be-deactivated BWP, or not resetting any one ofthe radio link in-sync counter, the radio link out-of-sync counter andthe radio link failure timer of the counting unit corresponding to eachto-be-deactivated BWP; stopping the radio link monitoring operation oneach to-be-deactivated BWP; and when the radio link monitoring operationis currently being performed on each to-be-deactivated BWP, omitting theindication information.

In a possible embodiment of the present disclosure, the computer programis further executed by the processor so as to: after stopping the radiolink monitoring operation on the to-be-deactivated BWP in accordancewith the indication information, select one BWP in accordance with apredetermined rule; and perform the radio link monitoring operation onthe selected BWP through the counting unit corresponding to theto-be-deactivated BWP or through the counting unit corresponding to theselected BWP.

In a possible embodiment of the present disclosure, the computer programis further executed by the processor so as to: receive indicationinformation from the network device, the indication informationincluding one of indication information for replacing or reconfiguringone or more BWPs for the radio link monitoring operation, and indicationinformation for replacing or reconfiguring one or more BWPs for theradio link monitoring operation and one or more replaced or reconfiguredBWPs for the radio link monitoring operation; and perform at least ofthe following processings in accordance with the indication information:resetting at least one of the radio link in-sync counter, the radio linkout-of-sync counter and the radio link failure timer of the countingunit corresponding to the to-be-replaced or to-be-reconfigured BWP, ornot resetting any one of the radio link in-sync counter, the radio linkout-of-sync counter and the radio link failure timer of the countingunit corresponding to the to-be-replaced or to-be-reconfigured BWP;stopping the radio link monitoring operation on the to-be-replaced orto-be-reconfigured BWP; and performing the radio link monitoringoperation on the replaced or reconfigured BWP.

In a possible embodiment of the present disclosure, the computer programis further executed by the processor so as to: after performing theradio link monitoring operation on the to-be-replaced orto-be-reconfigured BWP in accordance with the indication information,select one BWP in accordance with the predetermined rule; and performthe radio link monitoring operation on the selected BWP through thecounting unit corresponding to the to-be-replaced or to-be-reconfiguredBWP or the counting unit corresponding to the selected BWP.

According to the embodiments of the present disclosure, the radio linkmonitoring operation may be performed with the BWP as granularity. Ascompared with the conventional radio link monitoring method for the 4Gcommunication system, it is able to perform the radio link monitoringoperation in a more accurate manner without any necessity to monitor theradio link at a full frequency band, thereby to prevent the waste ofradio resources and reduce the power consumption for the UE during theradio link monitoring operation.

The present disclosure has been described with reference to the flowcharts and/or block diagrams of the method, device (system) and computerprogram product according to the embodiments of the present disclosure.It should be understood that computer program instructions may be usedto implement each of the work flows and/or blocks in the flow chartsand/or the block diagrams, and the combination of the work flows and/orblocks in the flow charts and/or the block diagrams. These computerprogram instructions may be provided to a processor of a commoncomputer, a dedicate computer, an embedded processor or any otherprogrammable data processing devices to create a machine, so thatinstructions executable by the processor of the computer or the otherprogrammable data processing devices may create a device to achieve thefunctions assigned in one or more work flows in the flow chart and/orone or more blocks in the block diagram.

These computer program instructions may also be stored in a computerreadable storage that may guide the computer or the other programmabledata process devices to function in a certain way, so that theinstructions stored in the computer readable storage may create aproduct including an instruction unit which achieves the functionsassigned in one or more flows in the flow chart and/or one or moreblocks in the block diagram.

These computer program instructions may also be loaded in the computeror the other programmable data process devices, so that a series ofoperation steps are executed on the computer or the other programmabledevices to create processes achieved by the computer. Therefore, theinstructions executed in the computer or the other programmable devicesprovide the steps for achieving the function assigned in one or moreflows in the flow chart and/or one or more blocks in the block diagram.

It should be further appreciated that, the above modules are dividedmerely on the basis of their logic functions, and in actual use, theymay be completely or partially integrated into a physical entity, orphysically separated from each other. These modules may be implementedby calling software through a processing element, or implemented in theform of hardware. For example, the determination module may be aprocessing element arranged separately, or integrated into a chip of theabove-mentioned device. In addition, it may be stored in the memory ofthe above-mentioned device in the form of a program code, and may becalled and executed by a processing element of the above-mentioneddevice so as to achieve the above functions. The other modules may beimplemented in a similar manner. All or parts of the modules may beintegrated together or arranged separately. Here, the modules, units orassemblies may each of an Integrated Circuit (IC) having a signalprocessing capability. During the implementation, the steps of themethod or the modules may be implemented through an integrated logiccircuit of the processing element in the form of hardware or throughinstructions in the form of software.

For example, the above modules may be one or more ICs capable ofimplementing the above-mentioned method, e.g., one or more ApplicationSpecific Integrated Circuits (ASICs), one or more Digital SignalProcessors (DSPs), or one or more Field Programmable Gate Array (FPGA).For another example, when a certain module is implemented by calling aprogram code through a processing element, the processing element may bea general-purpose processor, e.g., a Central Processing Unit (CPU) orany other processor capable of calling the program code. These modulesmay be integrated together and implemented in the form ofsystem-on-a-chip (SOC).

Although the preferred embodiments are described above, a person skilledin the art may make modifications and alterations to these embodimentsin accordance with the basic concept of the present disclosure. So, theattached claims are intended to include the preferred embodiments andall of the modifications and alterations that fall within the scope ofthe present disclosure.

It should be further appreciated that, such words as “first” and“second” are merely used to separate one entity or operation fromanother entity or operation, but are not necessarily used to representor imply any relation or order between the entities or operations. Inaddition, such terms as “include” or “including” or any other variationsinvolved in the present disclosure intend to provide non-exclusivecoverage, so that a procedure, method, article or device including aseries of elements may also include any other elements not listedherein, or may include any inherent elements of the procedure, method,article or device. If without any further limitations, for the elementsdefined by such sentence as “including one . . . ”, it is not excludedthat the procedure, method, article or device including the elements mayalso include any other identical elements.

The above embodiments are for illustrative purposes only, but thepresent disclosure is not limited thereto. Obviously, a person skilledin the art may make further modifications and improvements withoutdeparting from the spirit of the present disclosure, and thesemodifications and improvements shall also fall within the scope of thepresent disclosure.

1. A radio link monitoring method, comprising: determining configurationinformation for performing a radio link monitoring operation on one ormore Bandwidth Parts (BWPs) of a system bandwidth; and performing theradio link monitoring operation on one or more target BWPs in accordancewith the configuration information, the one or more target BWPsbelonging to the one or more BWPs.
 2. The radio link monitoring methodaccording to claim 1, wherein the determining the configurationinformation for performing the radio link monitoring operation on theone or more BWPs of the system bandwidth comprises: determining theconfiguration information for performing the radio link monitoringoperation on the one or more BWPs in accordance with a predefinedprotocol; and/or determining the configuration information forperforming the radio link monitoring operation on the one or more BWPsin accordance with a configuration configured by a network device. 3.The radio link monitoring method according to claim 1, wherein thepreforming the radio link monitoring operation on the one or more targetBWPs comprises: performing the radio link monitoring operation on theone or more target BWPs through one or more counting units for the radiolink monitoring operation, wherein each counting unit comprises a radiolink in-sync counter, a radio link out-of-sync counter and a radio linkfailure timer.
 4. The radio link monitoring method according to claim 3,wherein there exists at least one target BWP, and the counting unitscorrespond to the target BWPs respectively, wherein the performing theradio link monitoring operation on the one or more target BWPs throughthe one or more counting units for the radio link monitoring operationcomprises: performing, through each counting unit, the radio linkmonitoring operation on each target BWP corresponding to the countingunit, wherein the performing, through each counting unit, the radio linkmonitoring operation on each target BWP corresponding to the countingunit comprises: during the radio link monitoring operation, when a radiolink corresponding to a predetermined target BWP is in an out-of-syncstate, causing the radio link out-of-sync counter of the counting unitcorresponding to the predetermined target BWP to count in a cumulativemanner; and/or when the radio link corresponding to the predeterminedtarget BWP is in an in-sync state, causing the radio link in-synccounter of the counting unit corresponding to the predetermined targetBWP to count in a cumulative manner.
 5. (canceled)
 6. The radio linkmonitoring method according to claim 5, wherein the radio linkout-of-sync counter of the counting unit corresponding to thepredetermined target BWP is merely configured to count the quantity ofout-of-sync times when the radio link corresponding to the predeterminedtarget BWP is continuously in the out-of-sync state, and/or the radiolink in-sync counter of the counting unit corresponding to thepredetermined target BWP is merely configured to count the quantity ofin-sync times when the radio link corresponding to the predeterminedtarget BWP is continuously in the in-sync state.
 7. The radio linkmonitoring method according to claim 4, further comprising: when a valueof the radio link out-of-sync counter reaches a first predeterminedthreshold, starting the radio link failure timer which belongs to thesame counting unit as the radio link out-of-sync counter; and/or duringthe operation of the radio link failure timer, when a value of the radiolink in-sync counter which belongs to the same counting unit as theradio link failure timer reaches a second predetermined threshold,stopping or resetting the radio link failure timer.
 8. The radio linkmonitoring method according to claim 4, further comprising: when a valueof the radio link failure timer of any counting unit reaches apredetermined threshold, performing a radio link processing procedure,wherein the radio link processing procedure comprises at least one of:trigging a radio link failure operation; performing a deactivationprocedure, a replacement procedure or a reconfiguration procedure on theBWP for the radio link monitoring operation; triggering a failure eventfor the BWP for the radio link monitoring operation; performing thedeactivation procedure, the replacement procedure or the reconfigurationprocedure on the BWP corresponding to the counting unit comprising theradio link failure timer whose value reaches the predeterminedthreshold; and triggering the failure event for the BWP corresponding tothe counting unit comprising the radio link failure timer whose valuereaches the predetermined threshold; or the method further comprising:when the value of each radio link failure timer corresponding to eachcounting unit reaches the predetermined threshold, performing a radiolink processing procedure, wherein the radio link processing procedurecomprises at least one of: triggering the radio link failure operation;performing the deactivation procedure, the replacement procedure or thereconfiguration procedure on the BWP for the radio link monitoringoperation; and triggering the failure event for one or more BWPsmonitored by the radio link monitoring operation.
 9. (canceled)
 10. Theradio link monitoring method according to claim 3, wherein the one ormore target BWPs include at least two target BWPs corresponding to onecounting unit, wherein the performing the radio link monitoringoperation on the one or more target BWPs through the one or morecounting units for the radio link monitoring operation comprises:performing, through the counting unit, the radio link monitoringoperation on each target BWP corresponding to the counting unit.
 11. Theradio link monitoring method according to claim 10, wherein theperforming, through the counting unit, the radio link monitoringoperation on each target BWP corresponding to the counting unitcomprises: during the radio link monitoring operation, when a radio linkcorresponding to any one target BWP monitored by the counting unit is inthe out-of-sync state, causing the radio link out-of-sync counter of thecounting unit to count in a cumulative manner; and/or when the radiolink corresponding to any one target BWP monitored by the counting unitis in the in-sync state, causing the radio link in-sync counter of thecounting unit to count in a cumulative manner.
 12. The radio linkmonitoring method according to claim 11, wherein the radio linkout-of-sync counter of the counting unit corresponding to each targetBWP is merely configured to count the quantity of out-of-sync times whenthe radio link corresponding to the target BWP itself is continuously inthe out-of-sync state, and/or the radio link in-sync counter of thecounting unit corresponding to each target BWP is merely configured tocount the quantity of in-sync times when the radio link corresponding tothe target BWP itself is continuously in the in-sync state.
 13. Theradio link monitoring method according to claim 10, further comprising:when the value of the radio link out-of-sync counter reaches the firstpredetermined threshold, starting the radio link failure timer whichbelongs to the same counting unit as the radio link out-of-sync counter;and/or during the operation of the radio link failure timer, when thevalue of the radio link in-sync counter which belongs to the samecounting unit as the radio link failure timer reaches the secondpredetermined threshold, stopping or resetting the radio link failuretimer.
 14. The radio link monitoring method according to claim 10,further comprising: when the value of the radio link failure timer ofany counting unit reaches the predetermined threshold, performing aradio link processing procedure, wherein the radio link processingprocedure comprises at least one of: trigging the radio link failureoperation; triggering the failure event for one or more BWPs monitoredby the radio link monitoring operation; triggering the failure event forthe BWP corresponding to the counting unit comprising the radio linkfailure timer whose value reaches the predetermined threshold;performing the deactivation procedure, the replacement procedure or thereconfiguration procedure on the BWP corresponding to the counting unitcomprising the radio link failure timer whose value reaches thepredetermined threshold; and performing the deactivation procedure, thereplacement procedure or the reconfiguration procedure on the BWP forthe radio link monitoring operation.
 15. The radio link monitoringmethod according to claim 3, wherein there exist at least three targetBWPs which are divided into at least one first portion and at least onesecond portion, the first portion comprises at least one target BWP andeach target BWP corresponds to one counting unit, and the second portioncomprises at least two target BWPs and the at least two target BWPscorrespond to one counting unit, wherein the performing the radio linkmonitoring operation on the one or more target BWPs through the one ormore counting units for the radio link monitoring operation comprises:preforming, through each counting unit, the radio link monitoringoperation on each target BWP corresponding to the counting unit.
 16. Theradio link monitoring method according to claim 15, wherein theperforming the radio link monitoring operation on the one or more targetBWPs through the one or more counting units for the radio linkmonitoring operation comprises: during the radio link monitoringoperation on each target BWP of the first portion, when a radio linkcorresponding to a predetermined target BWP is in the out-of-sync state,causing the radio link out-of-sync counter of the counting unitcorresponding to the predetermined target BWP to count in a cumulativemanner, and/or when the radio link corresponding to the predeterminedtarget BWP is in the in-sync state, causing the radio link in-synccounter of the counting unit corresponding to the predetermined targetBWP to count in a cumulative manner; and during the radio linkmonitoring operation on each target BWP of the second portion, when aradio link corresponding to any one target BWP monitored by the countingunit is in the out-of-sync state, causing the radio link out-of-synccounter of the counting unit corresponding to the target BWP to count ina cumulative manner, and/or when the radio link corresponding to any onetarget BWP monitored by the counting unit is in the in-sync state,causing the radio link in-sync counter of the counting unitcorresponding to the target BWP to count in a cumulative manner.
 17. Theradio link monitoring method according to claim 15, wherein during theradio link monitoring operation on each target BWP of the first portion,the radio link out-of-sync counter of the counting unit corresponding tothe predetermined target BWP is merely configured to count the quantityof out-of-sync times when the radio link corresponding to thepredetermined target BWP is continuously in the out-of-sync state,and/or the radio link in-sync counter of the counting unit correspondingto the predetermined target BWP is merely configured to count thequantity of in-sync times when the radio link corresponding to thepredetermined target BWP is continuously in the in-sync state; andduring the radio link monitoring operation on each target BWP of thesecond portion, the radio link out-of-sync counter of the counting unitcorresponding to each target BWP is merely configured to count thequantity of out-of-sync times when the radio link corresponding to thetarget BWP itself is continuously in the out-of-sync state, and/or theradio link in-sync counter of the counting unit corresponding to eachtarget BWP is merely configured to count the quantity of in-sync timeswhen the radio link corresponding to the target BWP itself iscontinuously in the in-sync state.
 18. (canceled)
 19. The radio linkmonitoring method according to claim 15, further comprising: during theradio link monitoring operation on each target BWP of the first portion,when the value of the radio link failure timer of any counting unitreaches the predetermined threshold, performing a radio link processingprocedure, wherein the radio link processing procedure comprises atleast one of: trigging the radio link failure operation; triggering thefailure event for one or more BWPs monitored by the radio linkmonitoring operation; triggering the failure event for the BWPcorresponding to the counting unit comprising the radio link failuretimer whose value reaches the predetermined threshold; performing thedeactivation procedure, the replacement procedure or the reconfigurationprocedure on the BWP corresponding to the counting unit comprising theradio link failure timer whose value reaches the predeterminedthreshold; and performing the deactivation procedure, the replacementprocedure or the reconfiguration procedure on the BWP for the radio linkmonitoring operation; or the method further comprising: during the radiolink monitoring operation on each target BWP of the first portion, whenthe value of the radio link failure timer corresponding to each countingunit reaches the predetermined threshold, performing a radio linkprocessing procedure, wherein the radio link processing procedurecomprises at least one of: trigging the radio link failure operation;performing the deactivation procedure, the replacement procedure or thereconfiguration procedure on the BWP for the radio link monitoringoperation; and triggering the failure event for one or more BWPsmonitored by the radio link monitoring operation; or the method furthercomprising: during the radio link monitoring operation on each targetBWP of the second portion, when the value of the radio link failuretimer corresponding to each counting unit reaches the predeterminedthreshold, preforming a radio link processing procedure, wherein theradio link processing procedure comprises at least one of: trigging theradio link failure operation; triggering the failure event for one ormore BWPs monitored by the radio link monitoring operation; triggeringthe failure event for the BWP corresponding to the counting unitcomprising the radio link failure timer whose value reaches thepredetermined threshold; performing the deactivation procedure, thereplacement procedure or the reconfiguration procedure on the BWPcorresponding to the counting unit comprising the radio link failuretimer whose value reaches the predetermined threshold; and performingthe deactivation procedure, the replacement procedure or thereconfiguration procedure on the BWP for the radio link monitoringoperation. 20-22. (canceled)
 23. The radio link monitoring methodaccording to any one of claim 4, wherein the determining that the radiolink corresponding to each target BWP is in the out-of-sync statecomprises, when received quality of a reference signal for the targetBWP does not meet a predetermined condition and/or when an indicationindicating that the target BWP or a current User Equipment (UE) is inthe out-of-sync state has been received from a low layer, determiningthat the radio link corresponding to each target BWP is in theout-of-sync state; and/or the determining that the radio linkcorresponding to each target BWP is in the in-sync state comprises, whenthe received quality of the reference signal for the target BWP meetsthe predetermined condition and/or when an indication indicating thatthe target BWP or the current UE is in the in-sync state has beenreceived from the low layer, determining that the radio linkcorresponding to each target BWP is in the in-sync state.
 24. The radiolink monitoring method according to claim 3, further comprising:receiving indication information from the network device, the indicationinformation comprising at least one of indication information fordeactivating one or more BWPs for the radio link monitoring operation,and indication information for deactivating one or more BWPs for theradio link monitoring operation and activating one or more BWPs for theradio link monitoring operation; and performing at least one of thefollowing processings in accordance with the indication information:resetting at least one of the radio link in-sync counter, the radio linkout-of-sync counter and the radio link failure timer of the countingunit corresponding to each to-be-deactivated BWP, or not resetting anyone of the radio link in-sync counter, the radio link out-of-synccounter and the radio link failure timer of the counting unitcorresponding to each to-be-deactivated BWP; stopping the radio linkmonitoring operation on each to-be-deactivated BWP; and when the radiolink monitoring operation is currently being performed on eachto-be-deactivated BWP, omitting the indication information, the methodfurther comprising: after stopping the radio link monitoring operationon the to-be-deactivated BWP in accordance with the indicationinformation, selecting one BWP in accordance with a predetermined rule;and performing the radio link monitoring operation on the selected BWPthrough the counting unit corresponding to the to-be-deactivated BWP orthrough the counting unit corresponding to the selected BWP. 25.(canceled)
 26. The radio link monitoring method according to claim 3,further comprising: receiving indication information from the networkdevice, the indication information comprising one of indicationinformation for replacing or reconfiguring one or more BWPs for theradio link monitoring operation, and indication information forreplacing or reconfiguring one or more BWPs for the radio linkmonitoring operation and one or more replaced or reconfigured BWPs forthe radio link monitoring operation; and performing at least of thefollowing processings in accordance with the indication information:resetting at least one of the radio link in-sync counter, the radio linkout-of-sync counter and the radio link failure timer of the countingunit corresponding to the to-be-replaced or to-be-reconfigured BWP, ornot resetting any one of the radio link in-sync counter, the radio linkout-of-sync counter and the radio link failure timer of the countingunit corresponding to the to-be-replaced or to-be-reconfigured BWP;stopping the radio link monitoring operation on the to-be-replaced orto-be-reconfigured BWP; and performing the radio link monitoringoperation on the replaced or reconfigured BWP. 27-54. (canceled)
 55. AUser Equipment (UE), comprising a memory, a processor, and a computerprogram stored in the memory and executed by the processor, wherein theprocessor is configured to execute the computer program so as toimplement a radio link monitoring method, comprising: determiningconfiguration information for performing a radio link monitoringoperation on one or more Bandwidth Parts (BWPs) of a system bandwidth;and performing the radio link monitoring operation on one or more targetBWPs in accordance with the configuration information, the one or moretarget BWPs belonging to the one or more BWPs.
 56. (canceled)